We can do nothing unless we( ) more information.

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• 1No sooner had they got off train( ) it started moving .

  A. when B. than

  C. then D. after

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• 2They believed that by using computers the production of their factory( ).

  A. will greatly increase B. would greatly increase

  C. has greatly increased D. would be greatly increased

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• 3All the machines　( )by the end of the following week.

  A. were repaired 　B. will be repaired

  C. have been repaired 　D will have been repaired

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• 4“This is a terribly heavy box.” “　( )　help you to carry it.”

  A. I am to 　　　　　 　　 B. I will

  C. I 　　　　　　　　　 D. I am going to

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• 5By the time Juan gets home, his aunt( ) for Puerto Rico.

  A. will leave B. leaves

  C. will have left D. left

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• 6By the time Juan gets home, his aunt( ) for Puerto Rico.

  A. will leave B. leaves

  C. will have left D. left

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• 7By the time Juan gets home, his aunt( ) for Puerto Rico.

  A. will leave B. leaves

  C. will have left D. left

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• 8( ) four years since John left school.

  A. It was B. Those are

  C. It is D. They have been

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• 9Our thoughts( ) by means of words.

  A. were being expressed B. are being expressed

  C. are expressed D. have been expressed

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• 10Our thoughts( ) by means of words.

  A. were being expressed B. are being expressed

  C. are expressed D. have been expressed

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